Understanding the loadbalancer in service

General Discussions
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1 
apiVersion: v1
kind: Service
metadata:
  name: my-service
spec:
  selector:
    app: MyApp
  ports:
    - protocol: TCP
      port: 80
      targetPort: 9376
  clusterIP: 10.0.171.239
  loadBalancerIP: 78.11.24.19
  type: LoadBalancer
status:
  loadBalancer:
    ingress:
      - ip: 146.148.47.155

I am trying to understand the loadbalancer and ingress here.
Here, by which ip address the service would be accessible? Requests from outside of the cluster will hit at 78.11.24.19 or 146.148.47.155?

It has been said in official documentation

information about the provisioned balancer is published in the Service’s .status.loadBalancer field.

Cannot understand this part.

Don’t ingress and loadbalancer both manage external access to the services?